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<?php $array = [ 'abc' => 0, 'foo-bcd' => 1, 'foo-def' => 1, 'foo-xyz' => 0, ]; $prefix = 'foo'; var_export( array_filter( $array, fn($key) => str_starts_with($key, $prefix), ARRAY_FILTER_USE_KEY ) );
Output for git.master, git.master_jit, rfc.property-hooks
array ( 'foo-bcd' => 1, 'foo-def' => 1, 'foo-xyz' => 0, )

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